Hitachi SJ Series, User Manual

Page: 61 / 786

7-6
Chapter 7
Wire Connection and Optional Devices
7.5 Connect Wire to the Main Circuit
Terminal Block
7.5.1 Configuration of Main Circuit Terminal
Block
7.5.2 Description of Main Circuit Terminal
Block
* The RB terminal is mounted only on models
equipped with the drive circuit for braking
resistor.
Terminal symbol Terminal name Description
R,S,T
(L1,L2,L3) Input terminal for
main power supply Connect to the AC power supply. Do not connect these terminals to the
AC power supply when using the harmonic suppression unit HS900A
series.
U,V,W
(T1,T2,T3) Inverter output
terminal Connect to the 3-phase motor.
PD,P
(+1,+) DC reactor
connection terminal Remove the short bar between PD and P terminals, and connect the
optional reactor DCL for improving power factor.
P,RB
(+,RB) Connection terminal
for external braking
resistor Connect the optional external braking resistor. For models equipped with
the braking resistor circuit, see “Chapter 20 Specifications”. Models not
equipped with the braking resistor circuit does not have the RB terminal.
P,N
(+,-) Connection terminal
for regenerative
braking unit Connect the optional regenerative braking unit BRD, regenerative
converter RC700, and harmonic suppression unit HS900A.
Inverter earth
terminal The earth terminal for the Inverter case. Please connect this terminal to
the ground.
Conduct class-D ground work for 200V class, and class-C ground work
for 400V class.
Short circuit between P and PD
(factory default state)
When shipped from the factory, P and PD
are short-circuited. If P and PD are not
connected, power is not supplied to the
main circuit, which disables operation.
Selection of EMC filter
(factory default state)
The EMC filter is disabled:
Model P1-*****-*FF and P1-*****-*FUF
The EMC filter is enabled:
Model P1-*****-*FEF and P1-*****-*FCF
ELB
Earth-leakage
breaker
Magnetic
contactor
MC
3-phase
AC power
supply
R/L1
S/L2
T/L3
R0
T0
U/T1
V/T2
W/T3
Control circuit
power supply
D-class grounding
(200V class)
C-class grounding
(400V class)
J51 connector
3-phase AC motor
M
Main circuit
terminal area
3
～
Short bar or terminal
Short bar Enable
P PD RB N
Short bar
Internal EMC filter
200 V class:
200-240 VAC
400V class:
380-500 VAC